S-93852A139 1.062" ID x 2.5" OD ASME B18.21.1 USS Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Exceptional load distribution due to large 2.5" OD, preventing surface damage and maintaining joint integrity under heavy loads
• Precise dimensional fit with 1.062" ID ensuring optimal compatibility with 1" screws and reducing installation errors
• Enhanced mechanical durability from Rockwell B68 hardness, providing reliable performance in high-stress applications
• Industry-standard compliance with ASME B18.21.1 specifications, guaranteeing consistent quality and interchangeability
• Environmental responsibility through full RoHS 3 and REACH compliance, meeting global regulatory requirements
• Versatile thickness range (0.136-0.192") accommodating various tension requirements and assembly tolerances

Professional Applications & Engineering Value

This 316 stainless steel USS flat washer delivers critical engineering solutions where corrosion resistance and structural reliability are paramount. The USS designation ensures it meets rigorous standards for heavy-duty applications, distributing clamp load effectively across a 2.5" diameter surface area to prevent bolt loosening and material deformation. Its Rockwell B68 hardness provides exceptional resistance to galling and wear in high-vibration environments common in marine, chemical processing, and offshore installations. The precise 1.062" ID maintains perfect alignment with 1" screw sizes, eliminating play while the generous OD protects soft surfaces from indentation. This industrial-grade washer effectively addresses common failure points in demanding applications through its optimized material properties and dimensional accuracy.

Specification Summary & Compliance

This USS flat washer features dimensional specifications of 1.062" ID × 2.5" OD with thickness ranging 0.136-0.192", specifically engineered for use with 1" screw sizes. Manufactured to ASME B18.21.1 standards, it ensures precise dimensional tolerances and mechanical properties. The component demonstrates Rockwell B68 hardness for consistent performance and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC requirements as of June 2023.